List of top Questions asked in Uttar Pradesh Combined Agriculture and Technology Entrance Test

An intrinsic semiconductor is converted into n-type extrinsic semiconductor by doping it with:
A body of mass \( m = 3.513 \, \text{kg} \) is moving along the X-axis with a speed of \( 5.00 \, \text{ms}^{-1} \). The magnitude of its momentum is recorded as:
De-Broglie wavelength of $\alpha$ particle is the same as that of a proton moving with (1/10) of velocity as the speed of light. The ratio of K.E. of proton to that of $\alpha$ particle is:
In hydrogen spectrum, the shortest wavelength in the Balmer series is \( \lambda \). The shortest wavelength in the Bracket series is:
Energy is not carried by
If the radius of Bohr's first orbit is \( a_0 \), what is the radius of the \( n \)th orbit?
Of the various series of the hydrogen spectrum, which of the following lies wholly in the ultraviolet region?
Isotopes of an element have a different number of
The process of heat transfer in which heat is transferred with actual migration of medium particles is known as
NAND gate means
A gun of mass 1000 kg fires a projectile of mass 1 kg with a horizontal velocity of 100 m/s. The velocity of recoil of the gun in the horizontal direction is
Which logic gate is represented by the following combination of logic gates?
logic gate is represented by the following combination of logic gates
The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary is 10. If 240 V AC is applied to the primary, the output from the secondary is –
Photons and alpha particles have the same de-Broglie wavelength. What is the same for both of them?
On increasing the reverse bias to a large value in a PN junction diode, current
The output of the two-input OR gate is high
An Astronomical Unit, or AU, is the average distance between
Displacement current is due to -
In Young's double slit experiment, the central point on the screen is -
The isotope generally used for the treatment of cancer is -
Which of the following materials is the most suitable for making a permanent magnet?
Cyclotron cannot accelerate
Two sources of light are said to be coherent when both give out light waves of the same
What does the area under acceleration-time graph represent for any given time interval?
For which of the following is magnetic susceptibility negative?